公开(公告)号：US08396042B2

公开(公告)日：2013-03-12

申请号：US12479424

申请日：2009-06-05

申请人： Kyeongpyo Kim ,  Jin Kyeong Kim ,  Woo Yong Lee ,  Yong Sun Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Kyeongpyo Kim ,  Jin Kyeong Kim ,  Woo Yong Lee ,  Yong Sun Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： H04W4/00 ,  H04J1/00 ,  H04J4/00

CPC分类号： H04W72/1252 ,  H04W74/08 ,  H04W84/12

摘要： A control apparatus for use in wireless communications includes an antenna unit having antennas, the number of the antennas being equal to a maximum allowable number of connections in a specific frequency band; and a controller for receiving a connection request signal from each terminal attempting to connect to the control apparatus via the antenna unit, and transmitting and receiving a data signal to and from each terminal connected to the control apparatus by using a multiple-input-multiple-output scheme. The controller transmit and receive the data signal to and from each terminal connected to the control apparatus by obtaining a signal value of each antenna based on a predicted channel matrix and the number and types of terminals connected to the control apparatus via the antenna and separating the data signal for each terminal from the signal value according to the multiple-input-multiple-output scheme.

摘要翻译： 用于无线通信的控制装置包括具有天线的天线单元，天线的数量等于特定频带中的最大允许连接数; 以及控制器，用于从每个终端接收尝试经由天线单元连接到控制装置的连接请求信号，并且通过使用多输入多重连接方式向连接到控制装置的每个终端发送数据信号和从每个终端接收数据信号， 输出方案。 控制器通过基于预测的信道矩阵以及通过天线连接到控制装置的终端的数量和类型获得每个天线的信号值来向连接到控制装置的每个终端发送数据信号并从每个终端接收数据信号， 根据多输入多输出方案从信号值得到每个终端的数据信号。

公开(公告)号：US20100017511A1

公开(公告)日：2010-01-21

申请号：US12443369

申请日：2007-09-19

申请人： Yong-Sun Kim ,  Se-Han Kim ,  Jin-Kyeong Kim ,  Nae-Soo Kim ,  Cheol-Sig Pyo

发明人： Yong-Sun Kim ,  Se-Han Kim ,  Jin-Kyeong Kim ,  Nae-Soo Kim ,  Cheol-Sig Pyo

IPC分类号： G06F15/16

CPC分类号： H04L12/66

摘要： Provided is a method of constructing a tree network which includes a first node. The method comprises: (a) the first node determining if there is a child node and requesting a parent node to allow the first node to withdraw if there is no child node; (b) selecting a child node based on remaining amounts of battery power of each child node if there are child nodes of the first node; (c) exchanging positions of the first node and the selected child node and requesting the parent node to allow the first node to withdraw if the child node selected in operation (b) does not have child nodes; and (d) repeating operations (b) and (c) if the child node selected in operation (b) has child nodes. The present invention solves the problem of decreasing lifetimes of upper nodes that consume more battery power than lower nodes due to more traffic transmission and reception.

摘要翻译： 提供了一种构建包括第一节点的树网络的方法。 该方法包括：（a）第一节点确定是否存在子节点，并且如果不存在子节点则请求父节点允许第一节点撤销; （b）如果存在第一节点的子节点，则基于每个子节点的电池功率的剩余量选择子节点; （c）如果在操作（b）中选择的子节点没有子节点，则交换所述第一节点和所选择的子节点的位置并请求所述父节点允许所述第一节点撤销; 和（d）如果在操作（b）中选择的子节点具有子节点，则重复操作（b）和（c）。 本发明解决了由于更多的业务传输和接收而降低了消耗更多电池电力的上层节点的寿命的问题，比下层节点更多。

公开(公告)号：US07750823B2

公开(公告)日：2010-07-06

申请号：US11776161

申请日：2007-07-11

申请人： Jin Kyeong Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Jin Kyeong Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： G08G1/08

CPC分类号： G08G1/161 ,  G08G1/056

摘要： An apparatus allocates a channel used for inter-vehicle communications according to a traveling direction. The apparatus includes a traveling direction determiner for determining whether or not a traveling direction of a vehicle is changed; and a channel allocator for allocating the vehicle a previously allocated channel or a new channel based on a determined result of the traveling direction determiner. Further, a method allocates a channel used for inter-vehicle communications according to a traveling direction. The method includes the steps of determining whether or not a traveling direction of a vehicle is changed; and allocating the vehicle a previously allocated channel or a new channel based on a determined result in the above step.

摘要翻译： 一种装置根据行驶方向分配用于车辆间通信的信道。 该装置包括用于确定车辆的行进方向是否改变的行进方向确定器; 以及信道分配器，用于基于行进方向确定器的确定结果来分配车辆先前分配的信道或新信道。 此外，方法根据行驶方向分配用于车辆间通信的信道。 该方法包括以下步骤：确定车辆行驶方向是否改变; 以及在上述步骤中基于所确定的结果来分配车辆先前分配的信道或新信道。

公开(公告)号：US20080136675A1

公开(公告)日：2008-06-12

申请号：US11776161

申请日：2007-07-11

申请人： Jin Kyeong KIM ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Jin Kyeong KIM ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： G08G1/056

CPC分类号： G08G1/161 ,  G08G1/056

摘要： An apparatus allocates a channel used for inter-vehicle communications according to a traveling direction. The apparatus includes a traveling direction determiner for determining whether or not a traveling direction of a vehicle is changed; and a channel allocator for allocating the vehicle a previously allocated channel or a new channel based on a determined result of the traveling direction determiner. Further, a method allocates a channel used for inter-vehicle communications according to a traveling direction. The method includes the steps of determining whether or not a traveling direction of a vehicle is changed; and allocating the vehicle a previously allocated channel or a new channel based on a determined result in the above step.

摘要翻译： 一种装置根据行驶方向分配用于车辆间通信的信道。 该装置包括用于确定车辆的行进方向是否改变的行进方向确定器; 以及信道分配器，用于基于行进方向确定器的确定结果来分配车辆先前分配的信道或新信道。 此外，方法根据行驶方向分配用于车辆间通信的信道。 该方法包括以下步骤：确定车辆行驶方向是否改变; 以及在上述步骤中基于所确定的结果来分配车辆先前分配的信道或新信道。

公开(公告)号：US08089909B2

公开(公告)日：2012-01-03

申请号：US12149255

申请日：2008-04-29

申请人： Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： G08C17/00 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04W74/0808 ,  H04L7/041 ,  H04W52/0216 ,  H04W74/002 ,  Y02D70/166

摘要： Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node. The receiver node determines a duration time of a deactivated state of the receiver node based on the received first preamble, thereby reducing overhearing in the sensor network.

摘要翻译： 提供了一种在传感器节点中发送/接收数据以减少传感器节点的窃听的方法，以及实现该方法的传感器网络。 具有以预定时间间隔以异步方式执行低功率监听（LPL）操作的多个节点的发送数据的发送方节点生成包括短前导码的长前导码，每个具有包含发送数据的目的地地址的信息 ，长前导码的剩余部分和发送数据的长度，并顺序发送第二前同步码和发送数据。 多个节点中的接收器节点确定在LPL操作中的活动状态期间是否感测到有效信号。 如果确定感测到有效信号，则接收器节点接收从发送器节点发送的短前置码。 接收机节点基于接收到的第一前导码来确定接收机节点的去激活状态的持续时间，从而减少传感器网络中的窃听。

公开(公告)号：US07804455B2

公开(公告)日：2010-09-28

申请号：US11782195

申请日：2007-07-24

申请人： Jong Moon Lee ,  Nae-Soo Kim ,  Cheol Sig Pyo ,  Ik Guen Choi

发明人： Jong Moon Lee ,  Nae-Soo Kim ,  Cheol Sig Pyo ,  Ik Guen Choi

IPC分类号： H01Q21/00

CPC分类号： H01Q1/2216 ,  H01Q9/0407 ,  H01Q21/245

摘要： Provided are an antenna apparatus for linearly polarized diversity antennas in a radio frequency identification (RFID) reader, and a method of controlling the antenna apparatus. The antenna apparatus includes: a plurality of linearly polarized diversity antennas disposed to have different directions to one another; a switching unit connecting the linearly polarized diversity antennas to the RFID reader; and a controller controlling the switching unit to selectively activate the linearly polarized diversity antennas.

摘要翻译： 提供了一种用于射频识别（RFID）读取器中的线性极化分集天线的天线装置和控制天线装置的方法。 天线装置包括：多个线性极化分集天线，被设置为具有彼此不同的方向; 将线性极化分集天线连接到RFID读取器的开关单元; 以及控制器，控制所述切换单元选择性地激活所述线性极化分集天线。

公开(公告)号：US20080130565A1

公开(公告)日：2008-06-05

申请号：US11932942

申请日：2007-10-31

申请人： Wun-Cheol Jeong ,  Jong-Moon Chung ,  Hyung-Weon Cho ,  Ki-Yong Jin ,  Nae-Soo Kim ,  Cheol-Sig Pyo

发明人： Wun-Cheol Jeong ,  Jong-Moon Chung ,  Hyung-Weon Cho ,  Ki-Yong Jin ,  Nae-Soo Kim ,  Cheol-Sig Pyo

IPC分类号： H04Q7/00

CPC分类号： H04W74/0816 ,  H04W72/0446 ,  H04W74/004 ,  H04W74/006 ,  H04W84/18 ,  Y02D70/166 ,  Y02D70/22

摘要： Provided is a recording medium for storing a structure of a frame for performing Medium Access Control (MAC) and allocating resources in a multi-hop wireless Ad hoc network, and a method of performing Medium Access Control (MAC) and allocating resources in a multi-hop wireless Ad Hoc network. The method includes performing initialization of communication by receiving or transmitting a Request-To-Send (RTS) message and a Clear-To-Send (CTS) message from or to a node that is to be communicated with in the multi-hop wireless Ad hoc network; constructing a frame comprising at least one slot comprising an initialization field for performing the initialization of communication, a high level link region for communication between Full Function Device (FFD) nodes in the multi-hop wireless Ad hoc network which exist within a one-hop distance in the multi-hop wireless Ad hoc network, and a low level link region for communication between Reduced Function Device (RFD) nodes in the multi-hop wireless Ad hoc network which exist within a one-hop distance from the reference FFD node; allocating the resources to the frame on the basis of data types, priorities, and estimated interference values; and performing communication between nodes in the multi-hop wireless Ad hoc network within the length of the frame, and then returning to the operation of performing initialization of communication. Therefore, by effectively executing MAC and allocating resources according to a variety of data requests, it is possible to improve the reliability and Quality of Service (QoS) of the multi-hop wireless Ad hoc network and reduce power consumption.

摘要翻译： 提供了一种用于存储用于执行介质访问控制（MAC）并且在多跳无线Ad hoc网络中分配资源的帧的结构的记录介质，以及执行介质访问控制（MAC）并且分配多个 -hop无线Ad Hoc网络。 该方法包括通过从多跳无线广播中要与之通信的节点接收或发送请求发送（RTS）消息和清除发送（CTS）消息来执行通信的初始化 hoc网络 构建包括至少一个时隙的帧，包括用于执行通信的初始化的初始化字段，用于在一跳内存在的多跳无线Ad hoc网络中的全功能设备（FFD）节点之间进行通信的高级链路区域 多跳无线Ad hoc网络中的距离，以及用于在多跳无线Ad hoc网络中的减少功能设备（RFD）节点之间进行通信的低级链路区域，其存在于距参考FFD节点的一跳距离内; 基于数据类型，优先级和估计的干扰值将资源分配给帧; 并且在该帧的长度内执行多跳无线Ad hoc网络中的节点之间的通信，然后返回到进行通信的初始化的操作。 因此，通过有效地执行MAC并根据各种数据请求分配资源，可以提高多跳无线Ad hoc网络的可靠性和服务质量（QoS），并降低功耗。

公开(公告)号：US07893836B2

公开(公告)日：2011-02-22

申请号：US12039476

申请日：2008-02-28

申请人： Byunghyun Chung ,  Hee Sook Mo ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Byunghyun Chung ,  Hee Sook Mo ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： G08B13/14

CPC分类号： G06K7/0008 ,  G06K7/10069 ,  G06K7/10356 ,  H04Q2213/13095

摘要： Provided are a method and an apparatus for avoiding a collision between each of radio frequency identification (RFID) readers. The method and the apparatus divide the RFID readers into first RFID readers and second RFID readers according to a maximum output level, and set first frequency channels for the first RFID readers and second frequency channels for the second RFID readers, set frequency channel disposition information for each of the first RFID readers, generate a channel holding signal in each of the first frequency channels, and if a frequency channel usage request or a frequency channel return request is received from one of the first RFID readers, stop generating or generate the channel holding signal in a frequency channel related to the frequency channel usage or return request. In this manner, the collision between each of the RFID readers is avoided by preventing the second RFID readers from using the first frequency channels for the first RFID readers. Also, the method and the apparatus can efficiently manage frequency channels by controlling a ratio of the number of the first frequency channels to be used by the first RFID readers and the number of the second frequency channels to be used by the second RFID readers, according to usage frequency.

摘要翻译： 提供了一种用于避免每个射频识别（RFID）读取器之间的冲突的方法和装置。 该方法和设备根据最大输出电平将RFID阅读器划分为第一RFID阅读器和第二RFID阅读器，并为第一RFID读取器和第二个RFID读取器的第二个频道设置第一个频道，设置频道信息处理信息 每个第一RFID读取器在每个第一频道中产生频道保持信号，并且如果从第一RFID读取器之一接收到频道使用请求或频道返回请求，则停止产生或生成频道保持 在与频道使用或返回请求相关的频道中的信号。 以这种方式，通过防止第二RFID读取器对第一RFID读取器使用第一频率信道来避免每个RFID读取器之间的冲突。 此外，该方法和装置可以通过控制由第一RFID读取器使用的第一频道的数量与第二RFID读取器使用的第二频道的数量的比率来有效地管理频道，根据 到使用频率。

公开(公告)号：US08285243B2

公开(公告)日：2012-10-09

申请号：US12808766

申请日：2008-12-03

申请人： Ho-Yong Kang ,  Dae-Young Yoon ,  Trung-Kien Nguyen ,  Ji-Eun Kim ,  Xiaohua Yu ,  Nae-Soo Kim ,  Cheol-Sig Pyo ,  Seok-Kyun Han ,  Sang-Gug Lee

发明人： Ho-Yong Kang ,  Dae-Young Yoon ,  Trung-Kien Nguyen ,  Ji-Eun Kim ,  Xiaohua Yu ,  Nae-Soo Kim ,  Cheol-Sig Pyo ,  Seok-Kyun Han ,  Sang-Gug Lee

IPC分类号： H04B1/16

CPC分类号： H04W52/0229 ,  Y02D70/122 ,  Y02D70/166

摘要： Provided is a low-power wake-up receiver that is sensitive to electric waves, by which power consumed by a radio frequency (RF) transceiver of a sensor node in a ubiquitous sensor network (USN) is minimized. A wake-up receiver waking up a main transceiver includes a duty cycle signal generation unit controlling a duty cycle of a duty cycle signal; a burst signal detection unit receiving an input signal including a burst signal and a data signal based on the duty cycle signal, amplifying the input signal, and, if the amplified input signal is the burst signal, outputting a control signal; and a data signal detection unit re-amplifying the amplified input signal based on the control signal, and, if the re-amplified input signal is the data signal, outputting a wake-up signal. Power supplied to the duty cycle signal generation unit is interrupted based on the control signal and power is re-supplied to the duty cycle signal generation unit based on the wake-up signal.

摘要翻译： 提供了一种对电波敏感的低功率唤醒接收机，通过这种接收器可以最小化无处不在的传感器网络（USN）中的传感器节点的射频（RF）收发器所消耗的功率。 唤醒主收发器的唤醒接收机包括：占空比信号发生单元，控制占空比信号的占空比; 突发信号检测单元，基于占空比信号接收包括脉冲串信号和数据信号的输入信号，放大输入信号，如果放大的输入信号是脉冲串信号，则输出控制信号; 并且数据信号检测单元基于控制信号对放大的输入信号进行再放大，并且如果再放大的输入信号是数据信号，则输出唤醒信号。 基于该控制信号，中断向占空比信号生成部供给的电力，并根据该唤醒信号将功率重新提供给占空比信号生成部。

公开(公告)号：US07899074B2

公开(公告)日：2011-03-01

申请号：US12153704

申请日：2008-05-22

申请人： Tae Joon Park ,  Se Han Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo ,  Jae Yong Lee ,  Byung Chul Kim

发明人： Tae Joon Park ,  Se Han Kim ,  Nae-Soo Kim ,  Cheol Sig Pyo ,  Jae Yong Lee ,  Byung Chul Kim

IPC分类号： H04L12/40

CPC分类号： H04W72/02 ,  H04W72/0406 ,  Y02D70/142 ,  Y02D70/166

摘要： Provided is an apparatus and method for controlling multi-channel access in USN-based MAC. The multi-channel access control apparatus includes a channel scanner, a control channel preoccupier, and an available channel exchanger. The channel scanner scans at least one or more available channels among the N data channels in a Tx sensor node. The control channel preoccupier preoccupies, in the Tx sensor node, the control channel through control channel sensing and back-off and broadcasts a preamble on the control channel periodically. The available channel exchanger detects, in an Rx sensor node, the available channels available to the Tx sensor node on the basis of the received preamble, selects a channel available to the Rx sensor node among the detected available channels, and transmits information about the selected channel to the Tx sensor node.

摘要翻译： 提供了一种用于在基于USN的MAC中控制多信道接入的装置和方法。 多通道访问控制装置包括信道扫描器，控制信道预占方和可用信道交换机。 信道扫描器扫描Tx传感器节点中的N个数据信道中的至少一个或多个可用信道。 控制信道预占在Tx传感器节点中通过控制信道感测和退避来控制控制信道，并且周期性地在控制信道上广播前导码。 可用信道交换机在Rx传感器节点中，根据接收到的前导码检测Tx传感器节点可用的可用信道，在检测到的可用信道中选择可用于Rx传感器节点的信道，并发送关于所选择的信道的信息 通道到Tx传感器节点。